/*
Given an array of integers, return indices of the two numbers such that they add up to a specific target.

You may assume that each input would have exactly one solution, and you may not use the same element twice.

Example:

Given nums = [2, 7, 11, 15], target = 9,

Because nums[0] + nums[1] = 2 + 7 = 9,
return [0, 1].
*/

func twoSum(nums []int, target int) []int {

	mapfind := make(map[int]int)

	for k, v := range nums {
		if index, ok := mapfind[target-v]; ok {
			return []int{index, k}
		}
		mapfind[v] = k
	}
	return []int{}
}
